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Concrete Pump

Concrete Pump

Concrete pump machine is more and more popular among civil engineering construction. Purchasing such a concrete pumping machine, you can quickly finish your project, such as, house building, flood control, tunnel construction, air port, bridge construction and water conservancy engineering, etc. For wide demand, innovates two types of efficient concrete pumping machines: concrete pump machine and concrete mixer machine with pump.

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Concrete Mixing Truck

Concrete Mixing Truck

Self loading concrete mixers can automatically produce and transport concrete on-site for its self-loading design, it is really efficient! During project, it loads materials by self, don’t need any other auxiliary equipment, and it has characteristics of small volume, four wheels-driving and steering. What’s more, it can discharge concrete at 290 degrees, which is much more convenient in all kinds of concrete production construction site, particularly small and narrow construction sites.

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Concrete Batching Plant

Concrete Batching Plant

Stationary concrete batching plant mixes cement, sandstone, limestone, coal and other raw materials to make concrete which are widely used in the construction projects. Generally speaking, stationary batching plant is used in concrete engineering, all-sized of construction projects, water conservancy, bridges and tunnels for its high productivity, convenient operation and high working efficiency.

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Experimental investigations on the effect of concrete quality

an empirical carbonation rate prediction model is proposed in the paper which takes into account both gaseous permeability and water sorptivity of the concrete. CRediT authorship contribution statement. Mike Otieno: Conceptualization, Methodology, Resources, Formal analysis, Writing - original draft, Writing - review & editing, Supervision.

MATHEMATICAL MODELING AND PREDICTION METHOD OF

128 Journal of Marine Science and Technology, Vol. 10, No. 2, pp. 128-135 (2002) MATHEMATICAL MODELING AND PREDICTION METHOD OF CONCRETE CARBONATION AND ITS APPLICATIONS Ming Te Liang*, Wenjun Qu**, and Chih-Hsin Liang***

CARBONATION SERVICE LIFE PREDICTION OF EXISTING CONCRETE VIADUCT/BRIDGE USING TIME-DEPENDENT RELIABILITY ANALYSIS

M-T. Liang et al.: Carbonation Service Life Prediction of Existing Concrete Viaduct 95 estimated the carbonation service life of reinforced concrete (RC) members using the degree of carbonation reliability versus time based on the carbonation limit state equation.

Electrochemical impedance measurement and modeling

2014/03/15 · Electrochemical impedance measurement and modeling analysis of the carbonation behavior for cementititous materials Author links open overlay panel Bi-qin Dong a Qi-wen Qiu a Jia-qi Xiang a Can-jie Huang a Feng Xing a Han a ...

Modeling the effects of fatigue damage on concrete

2018/12/10 · This paper assessed the service life of RC bridges subjected to carbonation under a changing climate based on time-dependent reliability analysis. First, a simplified carbonation model and the ...

Concrete Carbonation Test for Structure Analysis

Here are some details on the concrete carbonation test for the analysis of the structures. Concrete Carbonation occurs when the atmospheric carbon dioxide (CO 2) reacts with hydrated cement minerals (CaOH 2). CO 2 react in the presence of moisture with CaOH 2 and produce carbonates (CaCO 3). Carbonates slowly penetrate below the exposed surface ...

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Carbonation

Carbonation, Addition of carbon dioxide gas to a beverage, imparting sparkle and a tangy taste and preventing spoilage. The liquid is chilled and cascaded down in an enclosure containing carbon dioxide (either as dry ice or a liquid) under pressure. Increasing pressure and lowering temperature maximize gas absorption.

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Mathematical modeling and numerical study of carbonation in

Mathematical modeling and numerical study of carbonation in porous concrete materials Article in Applied Mathematics and Computation 281:16-27 · April 2016 with 31 Reads How we measure 'reads'

Estimation of Carbonation Depth Based on Hygrothermal

Keywords: carbonation; hygrothermal analysis; modeling. Date: 3/1/2011. Abstract: In this paper, a method for the estimation of concrete carbonation depth is presented. The basis of this method’s calculations is on the results of hygrothermal performance analysis of concrete components.

Carbonation Methods | Brülosophy

The beautiful thing about brewing our own beer is that we get to choose the carbonation level we so desire! Want a petillant Pilsner or sparkling Stout? Go for it! What I’ll be discussing here are the various carbonation methods I’ve used not only for beer, but sparkling cider, mead, and non-alcoholic soda.

Carbonation depth determination - CARBONTEST, Concrete

CARBONTEST® kit for carbonation depth determination. Mod. 58-E0066 Drilling phase with powder collection for carbonation test Application of phenolphthalein solution on the test tube with concrete powder Carbonation depth analysis by colour changing through phenolphthalein application

Carbonation Chart

To compliment our new Carb Stone we've created a forced carbonation chart to help you during your brew day! Simply match up the temperature you'll be carbonating at with the target volumes of CO2. Then set your pressure gauge to read the PSI listed in the chart. It is recommend to cold crash to at least 45F and then force carbonate your beer.

Design and Analysis of a Finite Volume Scheme

In this paper we introduce a finite volume scheme for a concrete carbonation model proposed by Aiki and Muntean in . It consists in a Euler discretisation in time and a Scharfetter–Gummel discretisation in space. We give here some hints for the proof of the convergence of the scheme and show numerical experiments.

Mathematical modeling of concrete carbonation process with hysteresis effect (Analysis

Mathematical modeling of concrete carbonation process with hysteresis effect 岐阜大学教育学部 愛木豊彦 (Toyohiko Aiki) Department of Mathematics, Faculty of Education Gifu University 名古屋工業大学 熊崎耕太 (Kota Kumazaki) Department of Engineering

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Probabilistic Analysis of Reinforced Concrete Carbonation Depth

The most developed meso-level model for carbonation is the Duracrete Carbonation model, where the depth of carbonation is described by this equation: 0. 2 C. kkD CTt X aT (8) Compared to the simple square-root of time model, the Duracrete carbonation model has a number of features: the parameter in front of the square-root of time is quan-

Modeling the effects of fatigue damage on concrete carbonation

This paper assessed the service life of RC bridges subjected to carbonation under a changing climate based on time-dependent reliability analysis. First, a simplified carbonation model and the ...

Carbonation of anthropogenic concrete; Evaluation of

*Concrete carbonation study (needs from engineering purposes)-To understand the detailed carbonation process (e.g. microscopic changes, geochemical changes and the progressing rate)-To develop methodology to estimate quantitative rate (or age) of carbonation by using isotopic analysis –14C (and d13C PDB)

Modeling reaction-driven cracking during mineral carbonation

This model evaluates water and CO 2 flow through peridotite fractured at different scales using a multiple continuum mesh. The effect of fluid flow, chemical reactions, and porosity and permeability feedbacks on carbonation rate and extent are explored, as is the effect of temperature.

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(PDF) Modeling the effects of fatigue damage on concrete carbonation

This paper presents the theoretical modeling of carbonation in fatigue-damaged concrete. First, a residual strain-based effective carbon dioxide diffusion coefficient in fatigue-damaged concrete was proposed. Based on that, the general carbonation

Understanding Carbonation

Understanding carbonation-induced pH reduction Carbonation’s most significant effect on concrete is reduced durability, a direct result of pH reduction. For clarification of how this pH reduction actually happens, it’s important to understand that pH, a term deriving from the German words for “power of hydrogen,” is a measure of the ...

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Analysis of carbonation behavior in concrete using neural network algorithm and carbonation modeling

Read "Analysis of carbonation behavior in concrete using neural network algorithm and carbonation modeling, Cement and Concrete Research" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at

Concrete Carbonation

Aug 20, 2017 · What is carbonation? Concrete is a highly alkaline material and if un-carbonated it has a pH in the region of 12.6. Carbonation starts on the surface of the concrete and can ultimately reach the depth of the steel reinforcement within the concrete.

Materials | Free Full-Text

The carbonation process can be quantitatively accessed by a parameter, which can be obtained by means of the electrochemical impedance spectroscopy (EIS)-based electrochemical model. It has been found that the parameter is a function of carbonation depth and of carbonation time. Thereby, prediction of carbonation depth can be achieved.